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A new map of the tiger shark (Galeocerdo cuvier) genetic population structure in the western Atlantic Ocean: Hypothesis of an equatorial convergence centre

2019Journal article Restricted access
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dc.contributor.authorCarmo, Camila B.
dc.contributor.authorFerrette, Bruno L.S.
dc.contributor.authorCamargo, Sâmia M.
dc.contributor.authorRoxo, Fábio F.
dc.contributor.authorCoelho, Rui
dc.contributor.authorGarla, Ricardo C.
dc.contributor.authorOliveira, Claudio
dc.contributor.authorPiercy, Andrew N.
dc.contributor.authorBornatowski, Hugo
dc.contributor.authorForesti, Fausto
dc.contributor.authorBurgess, George H.
dc.contributor.authorMendonça, Fernando F.
dc.date.accessioned2020-12-03T13:37:05Z
dc.date.available2020-12-03T13:37:05Z
dc.date.issued2019
dc.description.abstractThe tiger shark (Galeocerdo cuvier) is a common widespread coastal–pelagic shark species whose population genetic structure has only recently been the object of genetic studies. In this study, the tiger's shark mitochondrial DNA control region was sequenced for a sample of 172 individuals from the western Atlantic and from Australia's east coast in the Pacific Ocean. The results show a moderate variation in genetic diversity (h = 0.615 ± 0.038, π = 0.00184 ± 0.00021) with a strong population structure between Atlantic areas (ΦST = 0.28141, P = 0.00001). The maternal lineage has high site fidelity, which paradoxically is coupled with connectivity across open ocean stretches to Fernando de Noronha Archipelago, which is identified as an important hotspot for this species. These results help with the understanding of what drives the displacement of this shark, at intra‐ and/or inter‐ocean basins levels, and can help inform the implementation of future conservation and management measures. We recommend that the conservation of genetic diversity should be maintained at a global level and its maintenance should be pursued diligently in all populations of tiger shark. As the Fernando de Noronha region in the western Atlantic appears to contain the largest global genetic diversity of the species, this area should be treated as a marine reserve or ecological refuge for the tiger shark.pt_PT
dc.description.sponsorshipFCT IF/00253/2014pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1002/aqc.3029pt_PT
dc.identifier.issn1052-7613
dc.identifier.urihttp://hdl.handle.net/10400.1/14872
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWileypt_PT
dc.relation.publisherversionhttps://onlinelibrary.wiley.com/doi/full/10.1002/aqc.3029pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/pt_PT
dc.subjectConservation of tiger sharkpt_PT
dc.subjectGaleocerdo cuvierpt_PT
dc.subjectGenetic population structurept_PT
dc.subjectMaternal site fidelitypt_PT
dc.subjectPopulation hotspotspt_PT
dc.titleA new map of the tiger shark (Galeocerdo cuvier) genetic population structure in the western Atlantic Ocean: Hypothesis of an equatorial convergence centrept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage772pt_PT
oaire.citation.issue5pt_PT
oaire.citation.startPage760pt_PT
oaire.citation.titleAquatic Conservation: Marine and Freshwater Ecosystemspt_PT
oaire.citation.volume29pt_PT
person.familyNameCoelho
person.givenNameRui
person.identifier134638
person.identifier.ciencia-idDC1A-20B7-EAC0
person.identifier.orcid0000-0003-3813-5157
person.identifier.ridC-1163-2008
person.identifier.scopus-author-id56257111100
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication6366aa1b-1301-43a3-b2b0-1280311ac95f
relation.isAuthorOfPublication.latestForDiscovery6366aa1b-1301-43a3-b2b0-1280311ac95f

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